Attachment for signal boxes



G.A.JACKSON ATTACHMENT FOR SIGNAL BOXES Filed DecL 27. 1922 2 Sheets-Sheet 1 TEQPEN INVENTOR George A lfred Jackson ATTORNEY Jan. 1, 1924 G. A. JACKSON ATTACHMENT FOR SIGNAL BOXES Filed Dec. 27

2 SheetsSheet 2 K II INVENTOR George Alfred Jackson s gwj ATTORNEY clockwork with whiiili such-levers may be as yielding means for maintaining the arm in its normal elevated position. v

A suitable legend 47 is carried by the door 21 adjacent the pull hook 32, giving instructions for the operation of said hook, and suitable enclosing structure is provided for said hook, its containing recess 26 and the portion of the outer surface of the door 21 which carries said legend 47. Said structure comprises the frame 42, which is hinged at 43, to the door 21, is normally retained in closed position by engagement of the latch spring Mcarried by said door with a latch strike plate carried -by said frame, and carries the handle 46 by means of which it may be conveniently opened'and closed.

The transparent panel 48 is mounted in the frame 42, said panel being secured in adapted to engage sa d plate in a grooves 49 in the bottom and side walls of the opening enclosed by said frame (see Figs. 8 and 4:). Said panel is so positioned and of such form as to enable the hook 32 and the le end 4:? to be readily viewed therethrough.

In accordance with one of the more specific aspects of this invention, the material of the panel 48 should be such as to render it nonrangible in the ordinary sense, to the end that it cannot be so shattered as to be likely to cause fragments thereof to find lodginent where they might injure the hand of anyone having occasion to actuate hook 32. For this purpose, it has been found desirable to em loy a transparent variety of a material w ich, in many respects, is like what is known as pyralin or celluloid.

In accordance with a broader aspect of this invention, it will be evident that other features thereof may be advantageously employed in connection with a more readily frangible material, such as glass, because it is reasonable to assume that even a glass panel would not ordinarily be broken when a signal was transmitted from a box equipped with an attachment constructed in accordance with this invention, except as to the nontrangibility of the transparent panel.

The latch spring at is secured to the outside of the upper wall of the rearwardly extending portion 25 of the door 21, and the free end of said spring extends the recess 29 and through the slot 36 in the lower wall of the forwardly extending por-= ,tion 28, and is so formed. as to be disposed in the path oi? the late 45 so as to be manner pressure applied to said arm;

which Will yieldingly retain said name closed position,

The plate 45 is detacliably secured to the upper portion of the rear side of the frame 42, as by the screws 50, 50, in such position said frame, with reference to said ribs and to the forwardly extending portion 28 oil said door, is such as to minimize opportunity for rain to be so driven behind said frame as to reach the hook 32, the arm 30 or the inner surface of the door 21.

' i The legends'52 and 53 carried by the front surfaces of the portion 28 of the doorjll and the handle 46, respectively, give instructions for obtaining access to the book 32,

The plunger 54 is slidably mounted in an vopening through the door 21, so positioned that the front end of said plunger may engage the inner surface of the lower ortion of the frame 4L2 for the purpose of imparting an opening tendency thereto. The spring 55 is secured to the door 21, and the free endth'ereot is so applied to the inner end of said plunger as to urge same toward said frame,

The lugs 56, 56, the abutments 57, 5'7, 57, 57 and the spring58 are carried by the rear surface of the door 21, in the lower portion thereof, for the purpose of supporting a reserve supply of panels, such as the panel 48.

L lln applying this invention to existing signal boxes, it is merely needful to remove the oresent door and apply in place thereof a suitable door comprising a signal box attachment constructed in accordance with this invention. lit is believed that the foregoing description will make obvious to those skilled in this art the manner oi embodying this invention in signalboxes in course of manufacture.

The operation of the attachment shown by thedrawings and hereinbefore described in detail is as follows:

When it is desired to cause the transmission of a signal,the hinged section of the frame 42 should be swung upon its hinges 43 from its normal closed position, by means of the handle d6, so as toe give access to the pull hook 32; and said hook should there upon be depressed in the usual manner. Said hinged section may then be returned to its closed position, thus restoring its normally effective relationship to the recess 26,

to swing said hinged section liar enoug out its menace of a vertical plane so that gravity will cause said section to swing to the position indicated by dotted lines in Fig, 1; thus directing attention to the fact that the structure has not been properly restored. Without.

this feature, the hinged section might be. left in such partly closed position as to admit rain, snow and sleet behind said section in sufficientvolume to interfere with the operability of the attachment.

Should it be needful to replace the panel 4:8, the screws 50, 50 should be withdrawn and the plate 45 should be removed from the frame 42. The previously used panel 48, or any remaining parts thereof, may then be taken out of the grooves 49, and a new' panel may be inserted in such grooves. After inserting a new panel, as just described, the plate45 should be again secured in position by means of the screws 50, 50; and the frame may then be restored to its closed position.

Obviously, other structures may be devised which will embody certain or all of the features of this invention. The foregoing detailed. description and the accompanying drawings should therefore be considered as illustrative rather than in a limiting sense;'and what I claim and desire to secure by Letters Patent of the United States is: v

1. In an attachment for a signal box; a manually operable actuating member, a door associated with said member and having a rearwardly extending recessed portion through which is provided an opening for said member, relative construction and arrangement of said member and said door.

whereby someportion of said member will at all times cover said opening, suitable en closing. structure for said recessed portion, said structure suitably secured to the outer side of said door and comprising a transparent panel so positioned and of such form as to enable said member to be readily viewed therethrough,spri-ng latch mechanism for maintaining said structure in nor-' mal effective relationship to said recessed portion, and anoperating handle carried by said structure,

2. In an attachment forasignal box; a

manually operable actuating member, a doorassociated with said member and having a rearwardly extending recessed portion through which is provided an opening for said member, relative construction and arrangement of said'member and said door whereby some portion of said member will at all times coversaid opening, suitable enclosing structure for said recessed portion, said structure suitably secured to the outer side of said door and comprising a nonfran- 'ble transparent panel so positloned and ofsuch form as to enable sa1d member to be readily viewed therethrough, spring latch mechanism for maintaining said structure in normal effective relationship to said recessed 1 portion, and an operating handle carried by said structure.

3, In an attachment for a signal box; a manually operable actuating member, a door associated with said member and having a rearwardly extending recessed portion through which is provided an opening for said member, relative construction and arrangement of said member and said door whereby some portion of said member will at all times cover said opening, suitable enclosing structure for said recessedportion, saidstructure hinged to the outer side of said door and comprising a nonfrangible transparent panel so positioned and of such form asto enable said member to be readily viewed. therethrough, spring latch mechanism for maintaining said structure in normal effective relationship to said recessed portion, and an operating handle carried by said structure.

4, In an attachment for a signal box; suitable'enclosing structure for a manually operable member, means for suitably securing said structure to the outer side of an intended box, a nonfrangible transparent panel. carried by said structure and so posi tioned and of such form as to enable such a member to be readily viewed tlierethroug'h, and an operating handle carried by said structure.

5.111 an attachment for a signal box; suitable enclosing structure for a manually operable member, said structure comprising a hinged section, spring latch mechanism for maintaining said section in normal closed condition and a handle whereby said hinged section may be 'readilyopened, and a nonfrangible transparent panel carried by said hinged sect-ion. Y

' 6. In an attachment for a signal box; suitableenclosing structurefor a. manually operable member, said structure-having a rearwardly extending recessed portion through which is rovided an opening for a manually operab e actuating member, a hinged section, spring latch. mechanism for maintainingsaid section in normal efiective relationship to saidrecessed portion and a handle whereb said hinged section may. be readily 'opene and a nonfrangible transparent panel carried by said hinged section. r 1

7. In an attachment for a. signal box; a door having a rearwerrdly extending portion through which is provided an 0 ening, an actuating arm ivotally connecte to the "rearsid'e of said oer-,said arm so formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a plurality of types of signal boxes, a manually operable member carried by said arm and projecting for till wardly through said opening, suitable en- 7 closin structure secured to the outer side of said door, spring latch mechanism for formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a plurality of t pes of signal boxes and so that some portion out said arm will at all times cover said opening, a manually'operable member carried by said arm and projecting forwardly through said 0 ening, suitable enclosing structure secure to the outer side of said door, spring latch mechanism for maintaining said structure in normal closed condition, a handle whereby said structure may be readily opened, and anonfrangible transparent panel carried by said structure and so positioned and of such form as to enable said member to be readily viewed therethrou h.

9. li n an attachment for a signal box; a door having a rearwardl extending portion through which is provi ed an opening, an actuating arm ivotally connected to the rear side of sai door, said arm so formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a plurality of types of signal boxes, amanually operable member carried by said arm and projecting forwardly through said opening, yielding means for maintaining said arm in normal osition, suitable enclosin structure secured to the outer side of em door, springlatch mechanism for maintaining said structure in normal closed condition, a handle whereby said structure may be readily opened, and a nonfrangible transparent panel carried by said structure and so positioned and of such form as toenable said member to be readily viewed therethrough.

ill). lln an attachment for a signal box; a door havin a rearwardlv extending portion through which is provided an opening, an actuating arm pivotally connected to the rear side of said door, said arm so formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a plurality of types of signal boxes, a manually 0 table member carried by said arm and pro ecting forwardly through said opening, a stop for limiting the actuating movement of said arm, suit naraeos able enclosing structure secured to the outer side (it said door, spring latch mechanism for maintaining said structure in normal closed condition, a handle whereby said structure may be readily opened, and a nontrangible transparent panel carried by said structure and so positioned and of such formas to enable said m'inber to be readily viewed therethrough.

11. In an attachment for a signal box; a door having a rearwardly extending portion through which is provided an opening, an

actuating arm pivotally connected to the rear side of said door, said arm so formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a plurality of types of signal boxes, a manually operable member through.

12. lln an attachment for a signal box; a door having a rearwardl extending portion through which is provi ed an opening, an actuating arm pivotally connected to the rear side of said door, said arm so formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a lurality of types of signal boxes and so t at some portion of said arm will at all times cover said opening, a manuall operable member carried by said arm an proiecting forwardly through said opening, yielding means for maintaining said arm in normal position, a stop for limiting the actuating movement of said arm, suitable enclosing structure secured to the outer side of said door, spring latch mechanism {for maintaining said structure in normal closed condition, a handle whereby said structure may be readily opened, and a nonfrangible transparent panel carried by said structure and so positioned and of such form as to enable said member to be readistruction and arrangement of said memberv and said door whereby some portion at said member will at all times cover said opening, suitable enclosing structure tor the pmhit llltil tee v nevaeoa jecting portion of said member, said structure suitably secured to the outer side of said door and comprising a transparent panel so positioned and of Such form as to enable said member to be readil viewed therethrough, spring latch mechanism for main taining said structure in normal" efiective relationship to said member, and an operating handle carried by said structure.

a, 14. in an attachment for a signal box; a

' manually. operable actuating member, a

door associated with. said member and having an opening therethrough for a project ing portion of said member, relative construction andarrangement of said member and said door whereby some portion of said.

member will at all times cover said opening, suitable enclosing structure for the projecting ortion of said member, said structure suita ly secured. to-the outer side of said door and comprising a nonfrangible transparent panel so positioned and of such form as to enable said member to be readily viewed therethrough, spring latch mecha nism for maintaining said structure in normal effective relationship to said, member, and an operating handle carried by said structure.

15. In an. attachment for a signal box; a manually operable actuating member, a door associated with said member and havingan opening therethrough for a projecting portion of said member, relatiye'construction and arrangement of said member and said door whereby. some portion of said member will at all times cover said opening, suitable enclosing structure for the projecting portioni of said member, said structure hinged to the outer side of said door and compris-- ing a nonfrangible transparent panel so positioned and of such; -form as to enable said member to be readily viewed therethrough,

spring latch nechanism for maintaining sald stiuctu're' m normal efiiective relationship to said member, and an operating han dle carried by said structure.

16. in an attachment for a signal box; a door having an opening therethrough, an actuating arm pivotally connected to the rear side of said; door, said arm so formed and arranged as to be suited for operative engagement with the olockwbrkl starting levers of either of a plurality of types of signal boxes, a manually operable member carried by said arm and projecting'forwardly through said opening, suitable enclosing structure secured to the outer side of said door, spring latch mechanism for maintaining said structure in normal closed-,condi tion, a handle whereby said structure may be readily opened, and a nonfrangible trans parent panel carried by said structure and so positioned and of such form as to enable said member to be readily viewed there= through.

of said door, said arm so formed and arranged as to be suited for operative engagement with the clockwork starting levers of either of a plurality of types of signal boxes and so-that some portion of said arm will at all times cover said opening, a manually operable member carried by said arm and projecting forwardly through said opening, suitable enclosing structure secured to the outer side of said door, spring latch mecha nism for maintaining said structure in normal closed condition, a handle whereby said structure may be readily opened, and a nonfrangible transparent panel carried by said structure and so positioned and of such form as to enable said member to be readily viewed therethrough.

18,. In an attachment for a signal box; a door having an opening therethrough, an actuating arm pivotally connected to the rear side of said door, said arm so formed and arranged as to be suited for operative engagement with the clockwork startin lovers of either of a plurality of types 0' signal boxes, a manually operable member carried by said arm and projecting forcured to the outer side of said door,

spring latch mechanism for maintaim ing said structure in normal closed condition, a handle whereby said structure may be readily opened, and a nonfrangible transparent panel carried by said structure and so positioned and of such form as to enable said member to be readily viewed therethrough.

19. In an attachment for a signal box; a door having an opening therethrough, an actuating arm pivotally connected to the rearside of said door, said arm so formed and arranged as to be suitedior operative engagement with the clocork starting levers of either of a plurality of types of signal boxes, a manually operable member carried bly said arm and projecting forwardly t rough said opening, a stop for limiting the actuating movement of said arm, suitable enclosing structure secured to theouter side of said door, s ring latch mechanism for maintaining sai structure in normal closed condition, ahandle whereby said structure may be readily opened, and a nontrangible transparent panel carried by said structure and so positioned and of such form as to Kilt and arranged as to be suited for operative engagement with a the clockwork starting levers of eitherol' a plurality of types or signal boxes, a manually operable member carried by said arm and projecting torweirdly through said opening, yielding means for maintainingsaid arm in normal position, a stop for limiting the actuating movement of said arm, suitable enclosing structure secured to the outer side ofsaid door, spring latch mechanism for maintaininn saicl structure in noal closed condition, a handle whereby said structure may be readily opened, and a nonifrnngible transparent panel carried by said structure and so positioned and of such form as to enable said member to be readily viewed therethrou h,

' 21. u an attachment for a signal box; a door having an opening therethrough, an ac tuating arm pivotally connected to the rear side of said door, said arm so formed and arapropos ranged as to be suited for operative engagement with; the clockwork starting levers of either of a plurality of types or signal boxes and so that some portion of said arm will at all times cover said opening, a manually operable member carried by said arm and projecting forwardly through said opening, yielding means for maintaining said arm in normal position, a stop for limiting the actuating movement. of said arm, suitable enclosing structure secured to the outer side of said door, s ring latch mechanism for maintaining sai structure in normal closed condition, a handle whereby said structure may be readily opened, and a nonfrangible transparent panel carried by said structure and so ositioned end of such form as to enable sai member to be readily viewed therethrough.

ln witness whereof, I hereunto subscribe my name, this 22d da of December, 1922.

GEURGE A FRED JACKSUN. 

